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A 4-GHz Low-Power Multi-User Approximate Zero-IF FM-UWB Transceiver for IoT
一款用于物联网的低功耗4GHz FM-UWB收发器
65nm CMOS, 575µW发射功耗, -11.4dBm输出功率, 100kb/s速率
FM-UWB低功耗物联网体域网CMOS收发器
▸创新点1:多用户近似零中频FM-UWB架构(系统创新)。该架构通过频率调制超宽带技术实现多用户并行通信,支持四个并行信道共享同一射频频段,显著提高频谱利用率,同时保持低功耗(550 µW)和高灵敏度(-68 dBm)。
▸创新点2:共享射频IO和匹配网络(电路创新)。通过单一射频IO引脚和全集成匹配网络实现发射器和接收器的资源共享,减少芯片面积和功耗,同时简化系统设计,适用于紧凑型物联网设备。
▸创新点3:容忍±8000 ppm参考频率偏移(方法创新)。该技术允许极大的参考频率偏移,为无石英晶体合成器的设计提供了可能,从而实现完全集成的无外置元件射频系统,降低成本和复杂度。
▸创新点4:低功耗高性能双模接收器设计(电路创新)。提供两种接收模式,低功耗模式(267 µW,-57 dBm)和高性能多通道模式(550 µW,-68 dBm),灵活适应不同应用场景的需求。
Abstract
This paper presents a 4-GHz FM ultra-wideband
(UWB) transceiver designed for the Internet of Things and
body area network applications. Robustness to interferers and
low power spectral density allow FM-UWB to coexist with
narrowband radios, while large signal bandwidth strongly relaxes
constraints on the frequency synthesis blocks enabling the full
integration of the radio at low power. The transceiver, integrated
with a 65-nm standard CMOS technology, consists of a trans-
mitter and two receive